1121122220873 has 2 divisors, whose sum is σ = 1121122220874. Its totient is φ = 1121122220872.

The previous prime is 1121122220849. The next prime is 1121122220891. The reversal of 1121122220873 is 3780222211211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883906466569 + 237215754304 = 940163^2 + 487048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121122220873 - 2¹² = 1121122216777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121122222873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561110436 + 560561110437.

It is an arithmetic number, because the mean of its divisors is an integer number (560561110437).

Almost surely, 2^{1121122220873} is an apocalyptic number.

It is an amenable number.

1121122220873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121122220873 is an equidigital number, since it uses as much as digits as its factorization.

1121122220873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 1121122220873 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, eight hundred seventy-three".